CRH plc is an international building materials group. The group was formed through a merger in 1970 of two leading Irish public companies, Cement Limited (established in 1936) and Roadstone Limited (1949). It is headquartered in Dublin.

Formerly Ingersoll-Rand, Trane Technologies was formed in early 2020 when part of the business separated and combined with Gardner Denver (which now trades as Ingersoll Rand Inc). Trane is listed on the NYSE. The industrial techology firm makes climate control system...

Kingspan manufactures insulation and building envelope solutions for the construction industry. It is based in Ireland but has operations in western and eastern Europe, the United States, India, Australasia and the Middle East.

The Grafton Group plc is a builders merchanting, DIY retailing and mortar manufacturing markets in Britain and Ireland. In Ireland it trades under the brands Woodie’s DIY , Heiton Buckley, Chadwicks and MacNaughton Blair. These businesses turnover €2 billion from 600 lo...

Cairn builds new homes.

Abbey plc is quoted on the ESM in Dublin, and the AIM Market in London. The company’s main activities are residential housing development in the United Kingdom, Ireland and Prague. It also has a plant hire division, M&J Engineers Ltd., based in the United Kingdom.

E&I Engineering provides switchgear, power distribution solutions and energy management systems throughout Ireland, the UK and mainland Europe. Its team of chartered engineers manages every aspect of a project from concept design with consultants, manufacture, delivery,...

Epsa Ireland provides construction services. It is a subsidiary of Spanish group Epsa Internactional S.A.

SISK Group is a fith generation family business primarily known for the construction division John Sisk and Son which operates in Ireland, the UK, Poland and the Middle East. It has grown from a small local builder founded in Cork more than 150 years ago to an intern...

KN Circet is an infrastructure and utilities services provider operating in Ireland, UK and internationally. Its areas of expertise span civil engineering, telecoms, construction, wireless technologies, rail infrastructure and home energy services. Its Irish office is l...

Project Management Holdings provides design, engineering, architecture, project planning and construction management services. Its clients are in private industry and public sector and it concentrates on the biopharma, food, energy and healthcare sectors. It was...

BAM Contractors (formerly Ascon Contractors) is a wholly owned subsidiary of Royal BAM Group of the Netherlands. BAM Contractors covers the entire spectrum of construction in Ireland. Its subsidiary operating companies are: • BAM Civil (formerly Ascon) • BAM Buildi...

Dornan Engineering is a mechanical, electrical and instrumentation contractor operating in Ireland, the UK, Sweden, Germany, Belgium and Russia. Recent projects include the supply and installation of complete electrical and mechanical services on the new air traffic con...

Jacobs is one of the world’s largest and most diverse providers of technical professional and construction services, including all aspects of architecture, engineering and construction, operations and maintenance, as well as scientific and specialty consulting. It s...

Since 1913, Glennon Brothers has been manufacturing timber products. Through Glennon Brothers plants in Longford and Fermoy, and Windymains Timber and Adam Wilsons in Scotland, it supplies both the Irish and UK markets with products for the construction, pallet wood and...

After Kevin Lagan sold the bulk of the Lagan Group to British group Breedon, in April 2018 for £455 million (€527 million), he set up Lagan Investments, while retaining control of Fasthouse, and of Lagan Homes in Northern Ireland and the UK. The company figures suppl...

The GMC Group, made up of its constituent parts: GMC Civil and Mechanical Engineering Ltd, Gerry McCloskey(Irl) Ltd and Gas Management Resources Limited, provides service and turnkey solution to the Utility and Civil Engineering industries in Ireland and the UK. It ...

John Paul Construction is an international specialist in construction, infrastructure and fit-out. Founded in 1949, the company provides a comprehensive range of construction services, such as ECI - early contractor involvement, preconstruction services, management cont...

Bennett Construction is an international family owned construction services company with offices and projects in Dublin, London, Germany and Abu Dhabi. The Bennett Group was founded in 1917 in Mullingar, Ireland. Since then the group has grown dramatically in both size ...

Graham is a privately owned company operating in the construction, asset management and project investment markets. The company is involved in construction through John Graham (Dromore) Ltd, in asset management through Graham Asset Management Ltd and investments through...